Sound tape magazine or the like



July 14, 1964 c c 3,140,832

SOUND TAPE MAGAZINE QR THE LIKE Filed Sept. 12 1961 United States Patent3,140,832 SOUND TAPE MAGAZINE OR THE LIKE Karl Cecil, Modling, nearVienna, Austria, assiguor to Karl Vockenhuber, Vienna, Austria FiledSept. 12, 1961, Ser. No. 137,610 Claims priority, application AustriaSept. 23, 1960 3 Claims. (Cl. 242--55.13)

The present invention relates to a sound tape magazine or the like, ingeneral, and to a tape recorder magazine comprising two spools thedistance between the axes of which is but a little greater than themaximum sum of the respective radii lengths of the two tape windings, inparticular. The spools are mounted in the casing of the magazine withparallel axes, one of the spools being arranged in such a way, that itis reversed relative to the other.

With known arrangements of the above described kind, tape windings wereable to enter a gap formed by two adjacent spool flanges resulting intransportation troubles of the tape.

It is an object of the present invention to provide a sound tapemagazine or the like, wherein spools are constructed in such manner asto avoid an axial shifting of the tape windings on the spool hub,especially in the range between the two spool axes.

It is a further object of the present invention to provide a sound tapemagazine or the like, wherein the casing of the magazine is constructedin such manner, as to make possible a manual drive of the spools, thusfacilitating to locate a certain part of the recording on the soundtape.

It is a further object of the present invention to provide a sound tapemagazine or the like, which includes an arrangement that prevents theloosening of the tape windings in the magazine.

It is a further object of the present invention to provide a sound tapemagazine or the like, wherein the magazine is constructed in such manneras to make possible its production at a minimum expenditure of tools,material, and working time.

With these and other objects in view which will become apparent in thefollowing detailed description, the present invention will be clearlyunderstood in connection with the accompanying drawings, in which:

FIGURE 1 is a plan view of a first embodiment of the sound tapemagazine;

FIG. 2 is a section along the lines IIII of FIG. 1;

FIG. 3 is a plan view of a second embodiment of the sound tape magazine,and

FIG. 4 is a section along the lines IV-IV of FIG. 3.

Referring now to the drawings, the magazine casing is formed of twouniform shells 1 and 1 of transparent plastic. In these two shells aremounted the two tape spools, each having a spool flange 2 and 3respectively, and a spool hub 4 and 5, respectively. The hubs 4 and 5are freely rotatable on respective shafts 6 and 7, which are held inblind holes 22, 23, 24 and 25 in the casing shells. Spring plates may beprovided between the casing wall and spool hub, to prevent an axialmovement of the spools. The spools are symmetrically arranged in themagazine and are so closely adjacent that the tape windings 8 and 9 areled on both sides through the spool flanges 2 and 3 in the range betweenthe two spools. In order to assure a control of the tape winding in theperiphery of the spools, the inside wall of the magazine is providedwith ribs 18 and 19, 20 and 21 respectively, the height of whichcorresponds with the height of the spool flanges 2 and 3 above theinside wall of the magazine. Therefore, even with a relatively looselywound tape a lateral shifting of the winding is prevented. Duringoperation, the sound tape is drawn off from the 3,140,832 Patented July14, 1964 strip winding 9 and led through an opening 40 to the soundheads. When returning to the magazine the sound tape 10 passes throughan opening 41 and is wound on the strip winding 8. The openings 11. and12 serve for receiving the centering pins which are arranged on thesound tape recorder. To facilitate manual rotation of the spools, theside wall of the casing is provided with openings 13 and 14 throughwhich the spool flanges 2 and 3 are accessible. The spools are normallydriven by a friction wheel 26, which can be arranged to bear against thecircumference of the spool flange 2 through a recess 15 in the magazinecasing. As this friction drive permits a certain slippage thearrangement of a special slipper clutch for compensating of alterationsof the winding diameter is superfluous.

By rotating the lever 27 the frictional wheel 26 can be urged intoengagement with the spool flange 3. In this switch position the tape isrewound. In order to prevent a loosening of the strip winding with themagazine which is separate from the sound tape recorder, a curved flatspring 16 is provided in the :magazine, the spring 16 supporting itselfagainst an inside wall of the magazine and lying against thecircumference of the spool flanges 2 and 3, and exerting a brakingaction on the same. This brake spring 16 may be lifted by means of a pin17 which is arranged on the sound tape recorder and extends into themagazine through an opening 39. When the recorder is switched on, thepin 17 can be pressed against the spring 16 so that the same is liftedfrom the spool flanges 2 and 3, for example.

According to the embodiment shown in FIGS. 3 and 4 two openings 31 and32, respectively, are provided in the magazine 28. The spools are drivenby a conical friction wheel 37 which extends through one of the openings31 or 32 and engages the circumference of the corresponding spool flange2 or 3. The shaft 38 is co-extensive of the friction wheel 37 and bearsagainst a flat spring 33 and 34, respectively, whereby the brake lining35 and 36, respectively, is removed from the corresponding spool hub andthe brake of the driven spool is lifted. With this arrangement the brakeof the second spool is not raised, a tape tension resulting therebywhich is required for a trouble-free operation of the recorder. Themagazine is centered on the tape recorder by means of openings 29 and 30similar to the openings 11 and 12 in the embodiment of FIGS. 1 and 2.

The present invention is not restricted to the illustrated embodimentsand may also be applied e.g. to substandard film casings.

While I have disclosed two embodiments of the present invention, it isto be understood that these embodiments are given by example only, andnot in a limiting sense, the scope of the present invention beingdetermined by the objects and the claims.

1. In a sound tape magazine a casing, two spools dis- I claim: posedadjacent each other, each of said spools comprising a hub and a singleflange secured to one side of said hub, windings of sound tape providedon each of said spools, said spools being mounted within said casingwith parallel axes and the distance between said axes being slightlygreater than the maximum sum of the respective radii lengths of said twosound tape windings on said spools, the radius of the flange of eachspool being greater than the difference of the distance between saidaxes and the radius of said hub, one of said spools being mountedreversed with respect to the other of said spools, and said flange ofeach of said spools covering at least partially the hub of the other ofsaid spools.

2. The sound tape magazine, as set forth in claim 1, wherein said casingcomprises Walls running parallel to said spool flanges, guide ribsarranged on the inside of said walls on parts facing the free winding ofeach of said spools, said guide ribs running about radially andoutwardly with respect to the axis of said spools, the height of saidguide ribs corresponds approximately with the height of said flange ofthe adjacent spool above the inside of said wall of said magazinecasing, so that a shifting of said tape winding is prevented.

3. In a sound tape magazine a casing, two similar shells of plasticmaterial, two spools disposed in said casing adjacent each other, eachof said spools comprising a hub and a single flange, secured to one sideof said hub, windings of sound tape on each of said spools, said spoolsbeing mounted within said casing with parallel axes, the distancebetween said axes being slightly greater than the maximum sum of therespective radii lengths of said two sound tape windings on said spools,the radius of the flange of each of said spools being greater than thedifference of the distance between said axes and the radius of said hub,each of said spools being mounted reversed with respect to the other ofsaid spools, and said flanges covering at least partially said hub ofthe other of said spools.

References Cited in the file of this patent UNITED STATES PATENTS2,676,766 Ross et a1 Apr. 27, 1954 2,821,576 Gaubert Jan. 28, 19582,862,674 Herrmann Dec. 2, 1958 2,922,642 Cousino Jan. 26, 1960

1. IN A SOUND TAPE MAGAZINE A CASING, TWO SPOOLS DISPOSED ADJACENT EACHOTHER, EACH OF SAID SPOOLS COMPRISING A HUB AND A SINGLE FLANGE SECUREDTO ONE SIDE OF SAID HUB, WINDINGS OF SOUND TAPE PROVIDED ON EACH OF SAIDSPOOLS, SAID SPOOLS BEING MOUNTED WITHIN SAID CASING WITH PARALLEL AXESAND THE DISTANCE BETWEEN SAID AXES BEING SLIGHTLY GREATER THAN THEMAXIMUM SUM OF THE RESPECTIVE RADII LENGTHS OF SAID TWO SOUND TAPEWINDINGS ON SAID SPOOLS, THE RADIUS OF THE FLANGE OF EACH SPOOL BEINGGREATER THAN THE DIFFERENCE OF THE DISTANCE BETWEEN SAID AXES AND THERADIUS OF SAID HUB, ONE OF SAID SPOOLS BEING MOUNTED REVERSED WITHRESPECT TO THE OTHER OF SAID SPOOLS, AND SAID FLANGE OF EACH OF SAIDSPOOLS COVERING AT LEAST PARTIALLY THE HUB OF THE OTHER OF SAID SPOOLS.